CN103282838B - Developer roll, handle box and electronic photographing device - Google Patents
Developer roll, handle box and electronic photographing device Download PDFInfo
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- CN103282838B CN103282838B CN201180063023.1A CN201180063023A CN103282838B CN 103282838 B CN103282838 B CN 103282838B CN 201180063023 A CN201180063023 A CN 201180063023A CN 103282838 B CN103282838 B CN 103282838B
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- developer roll
- structural formula
- elastic layer
- superficial layer
- toner
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
- G03G15/0818—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the structure of the donor member, e.g. surface properties
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49544—Roller making
Abstract
A kind of developer roll is provided, inhibit superficial layer to peel off from elastic layer when described developer roll is preserved and uses under hot and humid environment, and wherein toner is not easily attached to surface.Described developer roll can form high-quality electrophotographic image.Described developer roll comprises: mandrel; To be arranged on described mandrel and to comprise the elastic layer of the solidfied material of addition curable dimethyl silicone rubber; Comprise the superficial layer of carbamate resins with the side face covering described elastic layer.Described carbamate resins has the structure represented by structural formula (1) and the structure represented by structural formula (2) and/or the structure represented by structural formula (3) between two adjacent amino-formate bonds.
structural formula (1)
structural formula (2)
structural formula (3).
Description
Technical field
The present invention relates to for the developer roll of electronic photographing device, the handle box with described developer roll and electronic photographing device.
Background technology
In electronic photographing device (as used the duplicating machine of electrophotography, facsimile recorder and printer), electrophotographic photosensitive element (hereinafter, also be called " Electrifier frame, photoreceptor ") charged by charhing unit, and by exposures such as laser, thus form electrostatic latent image on Electrifier frame, photoreceptor.Then, the toner in developer container is applied on developer roll by toner supplying roller and toner control member.By being sent to the toner in the region that will develop by developer roll, the contact site of the electrostatic latent image on Electrifier frame, photoreceptor between Electrifier frame, photoreceptor and developer roll or the development of its adjacency section.Subsequently, the toner on Electrifier frame, photoreceptor is transferred on recording chart by transfer printing unit, and passes through heating/pressurizing/fixing.On Electrifier frame, photoreceptor, remaining toner is removed by cleaning balde.
As developer roll, usually use and have 10
3-10
10the resilient roller of Ω cm resistance.In addition, consider the requirement to the more high-durability of developer roll and the more high-quality of electrophotographic image, be used in the developer roll that elastic layer is provided with superficial layer on the surface.
Here, as the elastic layer of developer roll, suitably use and there is high deformation-recovery and flexible silicon rubber.As superficial layer, use the polyurethane (polyurethanes) with high abrasion resistance and charged toner.
PTL1 discloses a kind of method, is wherein arranged on silicon rubber elastic layer by poly-(tetramethylene glycol) polyurethane surface surface layer comprising specific composition, thus suppresses the problem under various temperature humidity environment.PTL2 discloses a kind of composition of the polyether-polyurethane superficial layer suppressing low melt toner to fuse.
In addition, PTL3 discloses a kind of developer roll, and described developer roll uses the polyurethane surface surface layer with low water absorbing capacity, thus retainer belt is electrical under hot and humid environment.
Reference listing
Patent documentation
PTL1: Japanese Patent Application Laid-Open 2005-141192
PTL2: Japanese Patent Application Laid-Open 2006-251342
PTL3: the flat 7-199645 of Japanese Patent Application Laid-Open
Summary of the invention
the problem that invention will solve
In recent years, in electronic photographing device, even if required also can keep high quality image and permanance under harsh environment.Although silicon rubber has high physical property as the constituent material of elastic layer described above, they are the materials with low polarity.For this reason, according to the examination of the present inventor, when by according to the developer roll comprising the elastic layer containing silicon rubber described in PTL1 to PTL3 temperature to be 40 DEG C and relative humidity be 95% hot and humid environment place for a long time, superficial layer sometimes can be peeled off from silicon rubber elastic layer.In addition, according in the developer roll described in PTL1 to PTL3, toner brute force is attached to its surface, in electrophotographic image, sometimes cause the density unevenness produced by toner attachment.
The present invention aims to provide the developer roll for the formation of high-quality electrophotographic image, preserve and inhibit superficial layer from the stripping of elastic layer in use, and toner is difficult to be attached on the surface of developer roll under hot and humid environment.
In addition, the present invention aims to provide the electrophotographic image-forming apparatus that Absorbable organic halogens exports high-quality electrophotographic image, and for the handle box of electrophotographic image-forming apparatus.
for the scheme of dealing with problems
To achieve these goals, present inventor has performed and study widely.Found that, the superficial layer comprising the urethane resin (polyurethaneresin) with ad hoc structure has high adherence to silicon rubber elastic layer, and toner is difficult to the surface being attached to superficial layer.Therefore, the present invention is realized.
Namely, according to an aspect of the present invention, a kind of developer roll is provided, described developer roll comprises mandrel, the superficial layer on elastic layer and the described elastic layer surface of covering, wherein said elastic layer comprises the solidfied material of addition curable dimethyl silicone rubber, described superficial layer comprises carbamate resins (urethaneresin), with described carbamate resins has the structure represented by lower structural formula (1) between two adjacent amino-formate bonds, with at least one structure being selected from the group that structure that the structure that represented by following structural formula (2) and following structural formula (3) represent forms:
structural formula (1)
structural formula (2)
structural formula (3)
In addition, according to a further aspect in the invention, provide a kind of handle box, described handle box at least comprises the developer roll be mounted thereon, and is removably mounted to electronic photographing device, and wherein, the developer roll be installed on described handle box is above-mentioned developer roll.
In addition, according to a further aspect in the invention, provide a kind of electronic photographing device, described electronic photographing device comprises developer roll, and is configured to be connected to the electrophotographic photosensitive element on described developer roll.
the effect of invention
According to the present invention, the superficial layer comprising the carbamate resins with specific structure unit is arranged on the elastic layer of the solidfied material containing addition curable dimethyl silicone rubber.Thus, the developer roll for the formation of high-quality electrophotographic image can be obtained, even if wherein when hot and humid environment is preserved for a long time, also all can suppress the stripping of superficial layer and the attachment of toner by high level.
In addition, according to the present invention, handle box and electronic photographing device that Absorbable organic halogens forms high-quality electrophotographic image can be obtained.
Accompanying drawing explanation
Fig. 1 is the concept map of display according to developer roll example of the present invention.
Fig. 2 is the schematic configuration figure of display treatment in accordance with the present invention box example.
Fig. 3 is the schematic configuration figure of display according to electronic photographing device example of the present invention.
Fig. 4 is the concept map of display liquid circulation dip coaterd.
The figure of the feature structure that Fig. 5 has for display carbamate resins according to the present invention.
The figure of the feature structure that Fig. 6 has for display carbamate resins according to the present invention.
Embodiment
Fig. 1 describes an embodiment according to developer roll 1 of the present invention.In the developer roll 1 described in Fig. 1, elastic layer 3 is formed on the outer peripheral face of cylindric or hollow cylindrical conductive shaft core 2.The outer peripheral face of elastic layer 3 is coated with superficial layer 4.
< mandrel >
Mandrel 2 plays the effect of electrode and developer roll 1 supporting member.The metal or alloy of mandrel 2 as aluminium, aldary and stainless steel etc.; The iron of chromium plating or nickel plating; Or the synthetic resin of conductive material as having electric conductivity is formed.
< elastic layer >
Elastic layer 3 give developer roll formed have preset width, the necessary elasticity of roll gap in abutting part between developer roll and Electrifier frame, photoreceptor.The solidfied material of elastic layer 3 containing addition curable dimethyl silicone rubber, described solidfied material imparting elastic layer is to the high deformation-recovery of distortion and flexibility.
In order to by the cohesive between hydrophobic effect strengthening surface layer and elastic layer, think that the amount of the hydrone being present in attachment near interface is less.In silicon rubber, rubber components itself has low polarity, and has low water absorbable.For this reason, depend on the filling kind that will comprise, the water absorbing capacity of elastic layer can reduce extremely low level.Therefore, after a while the high bonding effect between the elastic layer caused by hydrophobic effect described and the superficial layer comprising carbamate resins can be improved further.
Particularly, the water absorbing capacity had according to Japanese Industrial Standards (JIS) K7209 method A of elastic layer 3 be preferably less than 0.10%, more preferably more than 0.02% and less than 0.10%.
The example of addition curable dimethyl silicone rubber comprises: the multipolymer of dimethyl silicone polymer, Polymethyl methacrylate, polyphenylethylene radical siloxane, polymethoxy methylsiloxane, polyethoxy methylsiloxane and these polysiloxane.
Elastic layer 3 can comprise conductive particulate.As conductive particulate, carbon black or conductive metal can be used as aluminium and copper; With the fine grained of conductive metal oxide as zinc paste, tin oxide and titanium dioxide.Particularly preferably carbon black, this is because just can obtain high conductivity by relatively few carbon black addition.
In order to reduce the water absorbing capacity of elastic layer 3, preferably using in conductive particulate, to water, there are those of low compatibility especially.Such as, when carbon black is used as conductive particle, preferably, select there is relatively large primary particle size and the carbon black that polarizes is not carried out on surface.Particularly, consider the reinforcing of rubber and electric conductivity, the carbon black being applicable to using is have at more than 30nm and primary particle size in below 60nm scope, and as character of surface, carry out surperficial neutralisation or hydrophobization, that is, pH value is more than 5.0 and those carbon blacks of less than 8.0.
When above-mentioned carbon black is used as conductive particulate, based on 100 mass parts silicon rubber in elastic layer, its guiding content is 5-20 mass parts.
When using the conductive particulate except carbon black, fine grain addition preferably adjusts according to fine grain hydroscopicity, falls in above-mentioned scope to make elastic layer water absorbing capacity.
Elastic layer 3 suitably can comprise various adjuvant as conductive fillers, crosslinking chemical and the catalyzer except conductive particulate.
< superficial layer >
The carbamate resins be included in superficial layer 4 has the structure that represented by following structural formula (1) and is selected from one or both structures of the group that structure that the structure that represented by following structural formula (2) and following structural formula (3) represent forms between amino-formate bond.That is, according to carbamate resins of the present invention, there is following structure in the molecule: one or both structures of the structure that the structure wherein represented by following structural formula (1) and being selected from is represented by following structural formula (2) and the group that the structure that following structural formula (3) represents forms are folded between two amino-formate bonds.
structural formula (1)
structural formula (2)
structural formula (3)
Fig. 5 and Fig. 6 shows the certain features that carbamate resins according to the present invention has.In Fig. 5, the structure represented by structural formula (1) and the structure represented by structural formula (2) are folded between adjacent amino-formate bond A1 and A2.In the carbamate resins described in Fig. 6, the structure represented by structural formula (1) and the structure represented by structural formula (2) are folded between adjacent amino-formate bond B1 and B2, and are folded between adjacent amino-formate bond C1 and C2.Usually, the cohesive of synthetic resin, except chemical bonding, depends primarily on the interaction of polar functional group, and such as hydrogen bonding and soda acid interact.But silicon rubber has extremely low polarity, and its surface is inertia.For this reason, for the cohesive between the elastic layer containing silicon rubber and the superficial layer containing urethane resin, the strong interaction caused by polar functional group can not be expected.But, according to elastic layer of the present invention and superficial layer, even if when it being positioned over for a long time hot and humid harsh environment, also show high adherence.
Although reason has to be tested in detail, the present inventor is presumed as follows.
Namely, there is the carbamate resins of at least one structure being present in the structure represented by structural formula (1) between adjacent amino-formate bond and be selected from the group that structure that the structure that represented by structural formula (2) and structural formula (3) represent forms, as polyurethane, there is polarity extremely low compared with conventional polyether polyurethane, because methyl introduces in side chain.On the other hand, the solidfied material of known addition curable dimethyl silicone rubber has " spirality " molecular structure that wherein six siloxane (Si-O) keys rotate a time, and methyl orientation outwardly.That is, the polymer chain surface of silicon rubber is coated with hydrophobic methyl in fact.For this reason, the gravitation worked between hydrophobic molecule according to the methyl on the silastic surface in elastic layer of the present invention and be incorporated into superficial layer carbamate resins in work between methyl as side chain between two adjacent amino-formate bonds.Result is thought, according to superficial layer of the present invention and elastic layer display high adherence.
In addition, polyurethane according to the present invention comprises the polyether component represented by structural formula (1), and has high flexibility.Because polyurethane according to the present invention comprises one or both structures of the group that structure that the structure that is selected from and represented by structural formula (2) and structural formula (3) represent forms, therefore, the crystallinity in low temperature range significantly reduces.For this reason, even if the developer roll comprised containing the superficial layer of with good grounds polyurethane of the present invention is also flexible at low ambient temperatures, and the hardness of developer roll is difficult to increase.Therefore, even if at low ambient temperatures, the stress giving toner is also less, and hardly film forming occurs.
In addition, in polyurethane molecular according to the present invention, the hydrophobicity of the structure that the hydrophobicity with the structure that structural formula (2) or (3) represent represents than structural formula (1) is high.For this reason, carbamate resins itself reduces the compatibility of water, and can obtain relatively low water absorptivity as carbamate resins.In addition, in high temperature range, the methyl existed as side chain in the structure that in high temperature range, the motility of molecule is represented by structural formula (2) or (3) is suppressed.For this reason, even if under hot and humid environment, be also difficult to increase according to the viscosity (stickiness) of developing roller surface of the present invention, under effectively can suppressing hot and humid environment, toner is to the attachment of developing roller surface.
As carbamate resins according to the present invention, the structure represented preferably by structural formula (1) and the random copolymerization of at least one structure being selected from the group that the structure that represented by structural formula (2) and structural formula (3) forms obtain those.This is because the inhibition of transport properties of molecules is higher in the minimizing effect of low temperature range intercrystalline and high temperature range.
In polyurethane, " mol ratio of the structure that structural formula (1) represents ": " being selected from the mol ratio of at least one structure of the structure represented by structural formula (2) and structural formula (3) " is preferably 80:20 to 50:50.If the mol ratio of the structure represented by each structural formula is in described scope, then more effectively suppress the adhesion properties of toner effects on surface and the stripping of superficial layer.In addition, the flexibility in low temperature range is high, and permanance is also high.
Preferably, be included in polyurethane in superficial layer by following and obtain: the structure that represented by structural formula (1) and the PTMEG of at least one structure being selected from the structure represented by structural formula (2) and (3) will be had, or by making PTMEG and aromatic diisocyanate react the prepolymer of the C-terminal prepared and the prepolymer heat curing of isocyanate group end by making PTMEG and aromatic isocyanate react to prepare.
Usually, following methods is used for polyurethane synthesis:
(1) wherein polyol component is mixed the single stage method of also reacting with it with polyisocyanate component, and
(2) wherein by method that the prepolymer of the isocyanate group end by making part polyvalent alcohol and isocyanate reaction obtain and chain extender react as low molecular weight diols and low-molecular-weight triol.
But the PTMEG with the structure represented by structural formula (1) and at least one structure being selected from the structure represented by structural formula (2) and (3) is the material with low polarity.For this reason, PTMEG is little with the compatibility of the isocyanates with high polarity, respectively microcosmic is easily separated into the part with polyvalent alcohol at high proportion and the part with isocyanates at high proportion in system.In the part with polyvalent alcohol at high proportion, unreacted component may remain, residual unreacted polyvalent alcohol ooze out the surface that toner can be made to be attached to developer roll.
In order to reduce residual unreacted polyvalent alcohol, excessive use is needed to have the isocyanates of high polarity.As a result, the water absorbing capacity of polyurethane is usually higher.In the above-mentioned methods, isocyanates reacts each other with higher percent usually, causes producing the urea key and allophanic acid ester bond with high polarity.
The structure that represented by structural formula (1) will be had and be selected from the PTMEG of at least one structure of the structure represented by structural formula (2) and (3), or by making PTMEG and aromatic diisocyanate react the prepolymer of the C-terminal prepared and the prepolymer heat curing of isocyanate group end by making PTMEG and aromatic isocyanate react to prepare.Thus, the polarity difference between polyvalent alcohol and isocyanates can be reduced.For this reason, improve the compatibility of polyvalent alcohol and isocyanates, the ratio that can obtain isocyanates is less than the polyurethane with lower polarity of conventional example.In addition, due to residual unreacted polyvalent alcohol significantly can be reduced, toner can be suppressed to be attached to developing roller surface due to oozing out of unreacted polyvalent alcohol.
When using PTMEG and aromatic diisocyanate by making to comprise the structure represented by structural formula (1) and the structure represented by structural formula (2) or (3) to react the prepolymer of the C-terminal prepared, the number-average molecular weight of prepolymer is preferably more than 10000 and less than 15000.
When using the prepolymer of isocyanate group end, the content of isocyanates in prepolymer is preferably in the scope of 3.0 quality % to 4.0 quality %.If the isocyanate content in the prepolymer of the molecular weight of the prepolymer of C-terminal and isocyanate group end is in described scope, well balanced between the minimizing of the water absorbing capacity of the polyurethane then will produced and the suppression of residual unreacted components, the inhibition that toner attachment and superficial layer are peeled off can be compatible under higher level.
More specifically, polyurethane according to the present invention is by obtaining the prepolymer heat curing of the prepolymer of following to (a) C-terminal and (b) following isocyanate group end.
(a) by make to have the structure represented by structural formula (1) and at least one structure being selected from the structure represented by structural formula (2) and (3) and number-average molecular weight be more than 2000 and the PTMEG of less than 3000 and aromatic diisocyanate react prepare and have more than 10000 and the prepolymer of the C-terminal of the number-average molecular weight of less than 15000
B () is by making to have the structure represented by structural formula (1) and at least one structure being selected from the structure represented by structural formula (2) and (3) and number-average molecular weight is more than 2000 and the PTMEG of less than 3000 and aromatic isocyanate react prepolymer that prepare, isocyanate group end
If will more than 2000 be had and the PTMEG of the number-average molecular weight of less than 3000 is used as the raw material of the prepolymer of C-terminal and the prepolymer of isocyanates end, then can reduce the water absorbing capacity of the polyurethane that finally will obtain, and residual unreacted components can be suppressed.In addition, due to the intensity of superficial layer and viscosity high, also can improve permanance.
If desired, in the degree not damaging effect of the present invention, the polypropylene glycol except the structure represented except structural formula (1) and at least one structure being selected from the structure represented by structural formula (2) and (3) and aliphatic polyester can be comprised between two amino-formate bonds.The example of aliphatic polyester comprises by diol component as 1,4-butylene glycol, 3-methyl isophthalic acid, 5-pentanediol, neopentyl glycol or three alkoxide components as trimethylolpropane and dicarboxylic acid as the condensation reaction of hexane diacid, glutaric acid and decanedioic acid the aliphatic polyester polyols that obtains.
If desired, these polyol components can be the prepolymer being extended chain by isocyanates in advance, described isocyanates such as 2,4-toluene diisocyanate (TDI), Isosorbide-5-Nitrae-'-diphenylmethane diisocyanate (MDI) and isophorone diisocyanate (IPDI).
Preferably, from the viewpoint illustrating effect of the present invention, the content of component in polyurethane with the structure except the structure represented except structural formula (1) and at least one structure being selected from the structure represented by structural formula (2) and (3) is below 20 quality %.
The isocyanate compound that will react with these polyol components without particular limitation of.Aliphatic polymeric isocyanate can be used as ethylidene diisocyanate (ethylenediisocyanate), 1, hexamethylene-diisocyanate (HDI); Alicyclic polymeric isocyanate is as isophorone diisocyanate (IPDI), cyclohexane-1,3-diisocyanate and cyclohexane-Isosorbide-5-Nitrae-diisocyanate; Aromatic isocyanate is as 2,4-toluene diisocyanate, 2,6-toluene diisocyanate (TDI), 4,4 '-'-diphenylmethane diisocyanate (MDI), polymerization diphenylmethane diisocyanate, sub-Xylene Diisocyanate and naphthalene diisocyanate; With their multipolymer, isocyanuric acid ester, TMP adduct and biuret, and their segmented copolymer.
In these, aromatic isocyanate such as toluene diisocyanate, '-diphenylmethane diisocyanate and polymerization diphenylmethane diisocyanate are more suitable for using.
React preferably by the polyether component of at least one structure making aromatic isocyanate and there is the structure that represented by structural formula (1) between amino-formate bond and be selected from the structure represented by structural formula (2) and (3) and the polyurethane that obtains, this is because described polyurethane has high-flexibility and intensity, and the low viscosity under hot and humid environment.
As the ratio of the isocyanate compound that will mix and polyol component, based on the hydroxyl 1.0 in polyvalent alcohol, the ratio of isocyanate group is preferably in the scope of 1.2-4.0.
Preferably, superficial layer 4 has electric conductivity.The example of electric conductivity applicator comprises interpolation ionic conductive agent and conductive particulate.Be applicable to using cheapness and the conductive particulate had by the little resistance of environmental fluctuating.From conductivity-imparting ability and reinforcing viewpoint, particularly preferably carbon black.As the character of conductive particulate, primary particle size is more than 18nm and below 50nm, DBP uptake is more than 50ml/100g and below 160ml/100g.This type of carbon black of preferred use, and electric conductivity, balance between hardness and dispersiveness are good.The resin Composition that the content of conductive particulate forms superficial layer based on 100 mass parts is preferably more than 10 quality % and below 30 quality %.
When developer roll needs surfaceness, the fine grained being used for control surface roughness can be added into superficial layer 4.Fine grained for control surface roughness preferably has the volume average particle size of 3-20 μm.Preferably, the amount that be added into the particle of superficial layer is 1-50 mass parts based on the solid composition of the resin in 100 mass of surface layers.As the fine grained for control surface roughness, fine grained can be used as urethane resin, vibrin, polyether resin, polyamide, acrylic resin and phenolics.
The formation method of superficial layer 4 without particular limitation of, the example comprise use coating spraying, dip-coating or roller coat.In dip-coating, as superficial layer formation method, the method that wherein coating described in 57-005047 as clear in Japanese Patent Application Laid-Open overflows from dipping tank upper end is easy and have the production stability of excellence.
Fig. 4 is the schematic diagram of dip coater.Cylindrical shape dipping tank 25 has the internal diameter being a bit larger tham developer roll external diameter, and the degree of depth longer than the axial length of developer roll.Ring-shaped liquid acceptance division is arranged on the periphery of dipping tank 25 upper end, and is connected to stirred tank 27.The bottom of dipping tank 25 is connected to stirred tank 27.Coating in stirred tank 27 is fed to the bottom of dipping tank 25 by liquid charge pump 26.Coating overflows from dipping tank upper end, and the liquid-receivable section on the periphery of dipping tank 25 upper end is back to stirred tank 27.The mandrel 2 being provided with elastic layer 3 is vertically fixed to jacking equipment 28, is immersed in dipping tank 25, and lifts, thus forms superficial layer 4.
Developer roll according to the present invention can be used for the non-contact type developing apparatus and the contact-type developing apparatus that use magnetic single component developer and non-magnetic mono-component developer, and uses the developing apparatus of two-component developing agent.
Fig. 2 is the schematic diagram for the treatment of in accordance with the present invention box.Handle box shown in Fig. 2 comprises developer roll 1, developing blade 21, developing apparatus 22, electrophotographic photosensitive element 18, cleaning balde 26, used toner accommodating container 25 and charging roller 24, and these integrally fit into the main body being also removably mounted to electrophotographic image-forming apparatus in handle box.Developing apparatus 22 comprises toner container 20.Toner container 20 is filled with toner 20a.Toner 20a in toner container 20 is fed to the surface of developer roll 1 by toner supplying roller 19, and on the surface of developer roll 1, formed the layer with the toner 20a of preset thickness by developing blade 21.
Fig. 3 uses the schematic diagram according to the electronic photographing device of developer roll of the present invention.In Fig. 3, the developing apparatus 22 comprising developer roll 1, toner supplying roller 19, toner container 20 and developing blade 21 is removably mounted to electronic photographing device.In addition, the handle box 17 comprising Electrifier frame, photoreceptor 18, cleaning balde 26, used toner accommodating container 25 and charging roller 24 is removably installed.Alternatively, Electrifier frame, photoreceptor 18, cleaning balde 26, used toner accommodating container 25 and charging roller 24 can be arranged in the main body of electronic photographing device.Electrifier frame, photoreceptor 18 rotates in the direction of the arrow, and by the charging roller 24 for making Electrifier frame, photoreceptor 18 charge by uniform charging.By forming electrostatic latent image from the laser 23 of the exposure device for writing electrostatic latent image on Electrifier frame, photoreceptor 18 on the surface of Electrifier frame, photoreceptor 18.Toner 20a is supplied to electrostatic latent image by the developing apparatus 22 contacting configuration with Electrifier frame, photoreceptor 18, thus makes latent electrostatic image developing.Therefore, electrostatic latent image is visualized as toner image.
Carry out the so-called discharged-area development wherein forming toner image in exposure portion.By the transfer roll 29 as transfer member, the visual toner image on Electrifier frame, photoreceptor 18 is transferred to as on the paper 34 of recording medium.Paper 34 is by intake roller 35 and adsorption roller 36, and feeding enters in equipment, and is carried between Electrifier frame, photoreceptor 18 and transfer roll 29 by endless belt-shaped transfer printing conveying belt 32.Transfer printing conveying belt 32 is driven by driven voller 33, driven roller 28 and jockey pulley 31.Voltage is applied to transfer roll 29 and adsorption roller 36 from grid bias power supply 30.By fixation facility 27 by fixing for the paper 34 with the toner image of transfer printing, and be expelled to device external, thus complete printing.
On the other hand, by wiping transfer printing residual toner that is non-transfer and that remain on Electrifier frame, photoreceptor 18 off as the cleaning balde 26 of Electrifier frame, photoreceptor surface cleaning cleaning element, and be accommodated in used toner accommodating container 25.Aforesaid operations is repeated through clean Electrifier frame, photoreceptor 18.
Developing apparatus 22 comprises storage as the toner container 20 of the toner 20a of monocomponent toner be positioned at the peristome that toner container 20 extends longitudinally and the developer roll 1 as developer carrier arranged towards Electrifier frame, photoreceptor 18.Developing apparatus 22 makes the latent electrostatic image developing on Electrifier frame, photoreceptor 18, thus makes electrostatic latent image visual.
Embodiment
Hereinafter, will to describe according to a particular embodiment of the invention and comparative example.
(preparation of mandrel 2)
By by priming paint (trade name, DY35-051; Prepared by DowCorningTorayCo., Ltd.) be applied to and be made up of SUS304 and there is the core metal of 6mm diameter and baking priming paint to prepare mandrel 2.
(preparation of resilient roller)
(resilient roller C-1)
The mandrel 2 of above-mentioned preparation is configured in metal die, and the addition-type silicon rubber composition prepared by the material shown in mixing following table 1 is injected the cavity formed in metal die.
Table 1
Subsequently, heating of metal mould, and silicon rubber sulfuration at the temperature of 150 DEG C is solidified for 15 minutes.The mandrel of the silastic-layer with the solidification be formed on mandrel side face is shifted out from metal die.Then, heating core metal 1 hour at the temperature of 180 DEG C further, thus complete the curing reaction of silastic-layer.Therefore, production wherein forms the resilient roller C-1 that diameter is the silicon rubber elastic layer of 12mm on the periphery of mandrel 2.
(resilient roller C-2)
Beyond carbon black is 10 mass parts TOKABLACK#4400 (trade name, by TokaiCarbonCo., Ltd. manufacture), with the mode production resilient roller C-2 identical with resilient roller C-1.
(resilient roller C-3)
Amount except carbon black is except 5 mass parts, with the mode production resilient roller C-3 identical with resilient roller C-1.
(resilient roller C-4)
Amount except carbon black is 10 mass parts, and thermotolerance imparting agent is hydrophobic silica powder, and its addition is beyond 5 mass parts, with the mode production resilient roller C-4 identical with resilient roller C-1.
(resilient roller C-5)
Amount except carbon black is except 12 mass parts, with the mode production resilient roller C-5 identical with resilient roller C-2.
(resilient roller C-6)
Except the kind of change carbon black as shown in table 2 below and SiO 2 powder and amount, with the mode production resilient roller C-6 identical with resilient roller C-1.
Table 2
| Carbon black (trade name, TOKABLACK#4400: manufactured by Tokai Carbon Co., Ltd.) | 7 mass parts |
| As the hydrophobized silica powder of thermotolerance imparting agent | 5 mass parts |
(resilient roller C-7)
The material forming elastic layer is replaced with the material shown in following table 3.In addition, with the mode production resilient roller C-7 identical with resilient roller C-1.
Table 3
(preparation of superficial layer 4)
Hereinafter, will the synthesis example obtained according to polyurethane surface surface layer of the present invention be described.
The mensuration > of < molecular weight of copolymer
The equipment and the condition that measure number-average molecular weight (Mn) and weight-average molecular weight (Mw) in the present embodiment are as follows:
Sensing equipment: HLC-8120GPC (being manufactured by TosohCorporation)
Post: TSKgelSuperHZMM (being manufactured by TosohCorporation) × 2
Solvent: THF (adding 20mmol/L triethylamine)
Temperature: 40 DEG C
THF flow velocity: 0.6ml/min
The sample measured is the THF solution of 0.1 quality %.In addition, RI (refractive index) detecting device is used as detecting device, to measure.
Using TSK polystyrene standard A-1000, A-2500, A-5000, F-1, F-2, F-4, F-10, F-20, F-40, F-80 and F-128 (being manufactured by TosohCorporation) as making calibration curve reference sample, making calibration curve.According to the retention time wanting working sample obtained from calibration curve, determine weight-average molecular weight.
(synthesis of PTMEG A-1 to A-6)
Under the potpourri (mole mixture ratio is 50/50) of tetrahydrofuran dry for 144.2g (2mol) and the dry 3-methyltetrahydrofuran of 172.2g (2mol) being remained on the temperature of 10 DEG C in reaction vessel.Add 13.1g70% perchloric acid and 120g acetic anhydride, make reaction carry out 3 hours.Next, reaction mixture is injected 600g20% sodium hydrate aqueous solution, and refining.In addition, under reduced pressure remove residual water and solvent composition, thus obtain 224g liquid pfpe glycol A-1.Number-average molecular weight is 1000.
Change dry tetrahydrofuran with the mole mixture ratio of dry 3-methyltetrahydrofuran with except the reaction time except as shown in table 4 below, obtain PTMEG A-2 to A-6 with identical condition.
Table 4
(synthesis of the carbamate prepolymer A-7 of C-terminal)
In a nitrogen atmosphere, in reaction vessel, 200.0g PTMEG A-1 is instilled gradually 28.4 mass parts MDI (trade name: COSMONATEMDI is manufactured by MitsuiChemicals, Inc.), the temperature in reaction vessel is remained on 65 DEG C simultaneously.After completing dropping, at the temperature of 75 DEG C, carry out reaction 3 hours.Gained reaction product is cooled to room temperature (25 DEG C), thus obtains the carbamate prepolymer A-7 of 226g C-terminal.Number-average molecular weight is 15000.
(synthesis of carbamate prepolymer A-8 and A-9 of C-terminal)
Except change as shown in table 5 below is for the PTMEG that reacts with except the reaction time, obtain carbamate prepolymer A-8 and A-9 of C-terminal with identical condition.The number-average molecular weight of prepolymer A-8 and A-9 is shown in table 5.
Table 5
(synthesis of the prepolymer B-1 of isocyanate group end)
In a nitrogen atmosphere, in reaction vessel, by 200.0g polypropylene glycol polyvalent alcohol (trade name: EXCENOL1030; By AsahiGlassCo., Ltd. manufacture) instill 69.6 mass parts toluene diisocyanate (TDI) (trade names: COSMONATE80 gradually, manufactured by MitsuiChemicals, Inc.) in, the temperature in reaction vessel is remained on 65 DEG C simultaneously.After completing dropping, at the temperature of 65 DEG C, carry out reaction 2 hours.Make gained reaction mixture be cooled to room temperature, thus obtain the carbamate prepolymer B-1 that 244g has the isocyanate group end of 4.8% isocyanate group content.
(synthesis of the prepolymer B-2 of isocyanate group end)
In a nitrogen atmosphere, in reaction vessel, by 200.0g polypropylene glycol polyvalent alcohol (trade name: EXCENOL1030, by SanyoChemicalIndustries, Ltd. manufacture) instill gradually 76.7 mass parts polymerization MDI (trade name: MillionateMT, manufactured by NipponPolyurethaneIndustryCo., Ltd.) in, the temperature in reaction vessel is remained on 65 DEG C simultaneously.After completing dropping, at the temperature of 65 DEG C, carry out reaction 2 hours.Make gained reaction mixture be cooled to room temperature, thus obtain the prepolymer B-2 that 229g has the isocyanate group end of 4.7% isocyanate group content.
(synthesis of prepolymer B-3 and B-4 of isocyanate group end)
Except PTMEG is PTMEG A-6 and A-3 in table 4, obtain carbamate prepolymer B-3 and B-4 of isocyanate group end in the mode that the prepolymer B-2 with isocyanate group end is identical.
(synthesis of the prepolymer B-5 of isocyanate group end)
In a nitrogen atmosphere, in reaction vessel, the PTMEG A-6 in 200.0g table 4 is instilled 46.4 mass parts CORONATE2030 gradually, and (trade name, by NipponPolyurethaneIndustryCo., Ltd. manufacture) in, the temperature in reaction vessel is remained on 65 DEG C simultaneously.After completing dropping, at the temperature of 65 DEG C, carry out reaction 2 hours.Make gained potpourri be cooled to room temperature, thus obtain the carbamate prepolymer B-5 that 229g has the isocyanate group end of 3.4% isocyanate group content.Table 6 is shown in for the synthesis of the PTMEG of prepolymer B-1 to B-5 of isocyanate group end and the NCO% of the kind of isocyanates and each isocyanates.
Table 6
(embodiment 1)
Hereinafter, the production method according to developer roll of the present invention will be described.
As the raw material of superficial layer 4, the material shown in following table 7 is added into reaction vessel, and is uniformly mixed.
Table 7
| Raw material | Mass parts |
| The carbamate prepolymer A-9 of C-terminal | 100.0 |
| The prepolymer B-4 of isocyanate group end | 6.7 |
| Carbon black (trade name: MA230 is manufactured by Mitsubishi Chemical Corporation) | 21.2 |
Next, MEK (hereinafter, MEK) is added to make the ratio of always composition admittedly be 30 quality %, by sand mill mixed material.In addition, adjust viscosity at 10-13cps by MEK, thus preparation table surface layer formation coating.The resilient roller C-2 of above-mentioned production is immersed superficial layer formation coating, thus form the film of coating on the surface at the elastic layer of resilient roller C-2, dry coating.In addition, at the temperature of 150 DEG C, heat coating 1 hour, thus form the superficial layer with thickness about 20 μm in the periphery of elastic layer.Therefore, the developer roll according to embodiment 1 is produced.
Superficial layer according to the present invention has the structure represented by structural formula (1), and is selected from the structure represented by structural formula (2) and one or both structures represented by structural formula (3).This is by using the analysis of such as pyrolysis GC/MS, FT-IR or NMR to confirm.
Use pyrolysis plant (trade name: PyrofoilSamplerJPS-700, by JapanAnalyticalIndustryCo., Ltd. manufacture) and GC/MS equipment (trade name: FocusGC/ISQ, manufactured by ThermoFisherScientificInc.) analyze the superficial layer of gained in the present embodiment, wherein pyrolysis temperature is 590 DEG C, and uses helium as carrier gas.As a result, find from gained fragment peak, superficial layer has the structure represented by structural formula (1), and the structure represented by structural formula (2) and one or both structures of structure represented by structural formula (3).
Evaluate the following items of the thus obtained developer roll according to embodiment 1.
The mensuration > of the evaluation that < superficial layer is peeled off and peel strength
Carry out the evaluation that high temperature harsh environment undersurface layer is peeled off by the following method.Under the environment of temperature 40 DEG C with relative humidity 95%RH, place 60 days by according to the developer roll of embodiment 1.Subsequently, at room temperature developer roll is placed 3 hours, form the otch of 10mm × 50mm at the two ends of developer roll.Level fixes developer roll, by superficial layer from one jiao of otch with the vertical pull-up of the speed of 10mm/min, exerted oneself to peel off.By load sensor (loadcell) mensuration load now.The mean value definition of n=6 is peel strength by each end of mensuration developer roll three times.
Next, stripper surface is observed.Get rid of the part (cohesional failure) of elastic layer or superficial layer internal damage, the stripping according to following standard evaluation superficial layer:
A: the interface between superficial layer and elastic layer does not find to peel off,
B: in release surface less than 20% scope in, find the stripping at the interface between superficial layer and elastic layer, but developer roll can use and without any problem, and
C: in major part or whole release surface, find the stripping at the interface between superficial layer and elastic layer.
The mensuration > of < skin hardness
The skin hardness of following mensuration developer roll: after formation conductive resin layer, by micro-durometer (trade name: MD-1capa, by KobunshiKeikiCo., Ltd. manufacture), use the probe of diameter 0.16mm, under the environment of temperature 25 DEG C with relative humidity 50%RH, measure center, three, the upper and lower point of developer roll.The mean value of measured value is used as skin hardness.
< film forming evaluates >
By being arranged on according to the developer roll of the present embodiment on the laser printer (trade name: LBP5300, is manufactured by CanonInc.) that has as Fig. 3 structure, thus carry out film forming evaluation.That is, under the environment (hereinafter, L/L) of temperature 15 DEG C with relative humidity 10%RH, use black toner, be printed on continuously on the paper of A4 size with No. 4 word electrophotographic images of 1% printing rate by alphabetic(al) " E ".During each printing 1000, the surface of visualization developer roll.The picture number that will print when discovery black toner is attached to developing roller surface is defined as number when film forming occurs.
The mensuration > of < adhering toner concentration
By the concentration of adhering toner under following method evaluation hot and humid environment.Laser printer (the trade name: LBP5300 had as Fig. 3 structure will be arranged on according to the developer roll of embodiment 1; Manufactured by CanonInc.) with on Yellow toner box.Yellow toner box is installed on a laser printer.Use laser printer, carry out the operation exporting white solid image, thus be coated with the surface of developer roll with Yellow toner.Developer roll is in this case taken out from Yellow toner box.Developer roll is placed on polytetrafluoroethylene, presses to flat board with the load of 300gf (load of each end of mandrel is for 150gf), and be placed on lower 60 days of the environment of temperature 40 DEG C and relative humidity 95%RH.Then, developer roll is discharged under the state be pressed to flat board, and its former state is placed in lower 3 hours of the environment of temperature 25 DEG C and relative humidity 45%.Subsequently, blown in the surface of developer roll.Then, adhesive tape is used to be peeled off by the toner being attached to developer roll.The adhesive tape of attachment Yellow toner is positioned in common paper, and uses reflection density instrument (trade name: TC-6DS/A is manufactured by TokyoDenshokuCo., Ltd.) to measure reflection density.In order to compare, in an identical manner the adhesive tape adhered to without toner be positioned in common paper, and measure reflection density.Based on the reflection density of the adhesive tape adhered to without toner, computational reflect rate reduction (%).Measure at the center of developer roll and three, two ends point.Arithmetic mean is defined as the concentration of adhering toner in developer roll to be evaluated.
The mensuration > of < elastic layer water absorbing capacity
Use is cut into the elastic layer of 2mm × 2mm × 25mm size as test film, and measuring the water absorbing capacity of elastic layer 3 according to Japanese Industrial Standards (JIS) K7209 method A, is the water absorbing capacity of elastic layer by the mean value definition of n=3.
(embodiment 2-19)
Except material shown in following table 8 being used as superficial layer 4 with except raw material, preparation table surface layer formation coating in the same manner as example 1.In the same manner as example 1 coating is applied to respectively in the resilient roller shown in table 8, dry, and heat, thus produce the developer roll according to embodiment 2-19.
Table 8
*) p-MDI: the MDI (trade name: MillionateMR-200 of polymerization; Manufactured by NipponPolyurethaneIndustryCo., Ltd.)
(comparative example 1)
As superficial layer 4 material, material shown in following table 9 is placed in reaction vessel, stirs and mix.
Table 9
Below, in the mode identical with the preparation method of the superficial layer formation coating according to embodiment 1, prepare the superficial layer formation coating according to comparative example 1.In the same manner as example 1, by superficial layer formation coatings on the surface of the silicon rubber elastic layer of resilient roller C-1, and dry, thus form superficial layer.Therefore, the developer roll according to comparative example 1 is produced.
(comparative example 2)
As superficial layer 4 material, material shown in following table 10 is placed in reaction vessel, stirs and mix.
Table 10
Below, in the mode identical with the preparation method of the superficial layer formation coating according to embodiment 1, prepare the superficial layer formation coating according to comparative example 2.In the same manner as example 1, by superficial layer formation coatings on the surface of the silicon rubber elastic layer of resilient roller C-1, and dry, thus form superficial layer.Therefore, the developer roll according to comparative example 2 is produced.
(comparative example 3)
As superficial layer 4 material, material shown in following table 11 is placed in reaction vessel, stirs and mix.
Table 11
Below, in the mode identical with the preparation method of the superficial layer formation coating according to embodiment 1, prepare the superficial layer formation coating according to comparative example 3.In the same manner as example 1, by superficial layer formation coatings on the surface of the silicon rubber elastic layer of resilient roller C-1, and dry, thus form superficial layer.Therefore, the developer roll according to comparative example 3 is produced.
In the same manner as example 1, evaluate root is according to the developer roll of embodiment 2-19 and comparative example 1-3.Result is shown in table 12 and table 13.
Table 12
Table 13
In embodiment 1-19, even if under developer roll is placed in high temperature harsh environment for a long time, the stripping of superficial layer, the increase of roller skin hardness and the attachment of toner are also all suppressed.
Particularly, react to prepare prepolymer at the PTMEG and aromatic isocyanate with the structure represented by structural formula (1) and the structure represented by structural formula (2) or (3), and further this prepolymer being cured in the embodiment 1-9 and 13 of reaction, the stripping of superficial layer and the attachment of toner are inhibited with high level.
On the other hand, do not comprise in superficial layer in the developer roll according to the comparative example 1-3 of carbamate resins of the present invention, there occurs the attachment of toner or the stripping of superficial layer.
This application claims the right of priority of the Japanese patent application 2010-292765 that on Dec 28th, 2010 submits to, its full content is incorporated herein with for referencial use.
Claims (4)
1. a developer roll, it comprises the superficial layer on the described elastic layer surface of mandrel, elastic layer and covering, it is characterized in that,
Described elastic layer comprises the solidfied material of addition curable dimethyl silicone rubber,
Described superficial layer comprises carbamate resins, and
Described carbamate resins has the structure represented by following structural formula (1) between two adjacent amino-formate bonds, and is selected from least one structure of the group that structure that the structure that represented by following structural formula (2) and following structural formula (3) represent forms:
structural formula (1)
structural formula (2)
structural formula (3).
2. developer roll according to claim 1, the water absorbing capacity of described elastic layer wherein measured according to Japanese Industrial Standards JISK7209 method A is more than 0.02% and less than 0.10%.
3. an electronic photographing device, is characterized in that, it comprises developer roll according to claim 1 and 2, and is configured to be connected to the electrophotographic photosensitive element on described developer roll.
4. a handle box, is characterized in that, it comprises developer roll according to claim 1 and 2, and is configured to be connected to the electrophotographic photosensitive element on described developer roll, and described handle box is removably mounted to electronic photographing device main body.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-292765 | 2010-12-28 | ||
| JP2010292765 | 2010-12-28 | ||
| PCT/JP2011/007035 WO2012090418A1 (en) | 2010-12-28 | 2011-12-16 | Developing roller, process cartridge, and electrophotographic apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN103282838A CN103282838A (en) | 2013-09-04 |
| CN103282838B true CN103282838B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180063023.1A Active CN103282838B (en) | 2010-12-28 | 2011-12-16 | Developer roll, handle box and electronic photographing device |
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|---|---|
| US (1) | US8600273B2 (en) |
| EP (1) | EP2660657B1 (en) |
| JP (1) | JP5079134B2 (en) |
| KR (1) | KR101471318B1 (en) |
| CN (1) | CN103282838B (en) |
| BR (1) | BR112013014842A2 (en) |
| RU (1) | RU2540565C1 (en) |
| WO (1) | WO2012090418A1 (en) |
Families Citing this family (47)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8913930B2 (en) | 2011-06-29 | 2014-12-16 | Canon Kabushiki Kaisha | Developing roller, electrophotographic process cartridge, and electrophotographic image forming apparatus |
| BR112013033784A2 (en) | 2011-07-15 | 2017-02-07 | Canon Kk | developer support member, electrophotographic process cartridge, and electrophotographic imaging device |
| JP5693441B2 (en) * | 2011-12-26 | 2015-04-01 | キヤノン株式会社 | Electrophotographic conductive member, process cartridge, and electrophotographic apparatus |
| JP5723354B2 (en) * | 2011-12-28 | 2015-05-27 | キヤノン株式会社 | Developing member, process cartridge, and image forming apparatus for electrophotography |
| JP6023604B2 (en) * | 2012-02-17 | 2016-11-09 | キヤノン株式会社 | Developing member, process cartridge, and electrophotographic apparatus |
| JP6104068B2 (en) * | 2012-06-27 | 2017-03-29 | キヤノン株式会社 | Developing member, process cartridge, and electrophotographic apparatus |
| JP5600719B2 (en) * | 2012-06-27 | 2014-10-01 | キヤノン株式会社 | Developing member, process cartridge, and electrophotographic apparatus |
| WO2014006953A1 (en) | 2012-07-04 | 2014-01-09 | 日本電気株式会社 | Charging system control device, program, and control method |
| JP6113014B2 (en) * | 2012-07-31 | 2017-04-12 | キヤノン株式会社 | Electrophotographic member, method for producing electrophotographic member, and electrophotographic apparatus |
| JP2014040850A (en) * | 2012-08-21 | 2014-03-06 | Osaka Gas Co Ltd | Outermost surface composition of roller and/or metal mold |
| US20150064399A1 (en) * | 2013-08-27 | 2015-03-05 | Lexmark International, Inc. | Elastomeric Roll for an Electrophotographic Image Forming Device having a Coating that includes Compressible Hollow Microparticles |
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| US9811009B2 (en) * | 2014-05-16 | 2017-11-07 | Canon Kabushiki Kaisha | Electrophotographic member, process cartridge and electrophotographic apparatus |
| US9482986B2 (en) | 2015-02-27 | 2016-11-01 | Canon Kabushiki Kaisha | Member for electrophotography, process cartridge, and electrophotographic image forming apparatus |
| US10197930B2 (en) | 2015-08-31 | 2019-02-05 | Canon Kabushiki Kaisha | Electrophotographic member, process cartridge, and electrophotographic apparatus |
| US10082741B2 (en) | 2015-10-06 | 2018-09-25 | Canon Kabushiki Kaisha | Member for electrophotography, developing apparatus, and electrophotographic apparatus |
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| CN111989622B (en) | 2018-04-18 | 2022-11-11 | 佳能株式会社 | Developing member, process cartridge, and electrophotographic apparatus |
| WO2019203238A1 (en) | 2018-04-18 | 2019-10-24 | キヤノン株式会社 | Electroconductive member and method for manufacturing same, process cartridge, and electrophotographic image formation device |
| US10935903B2 (en) * | 2018-04-19 | 2021-03-02 | Canon Kabushiki Kaisha | Developing roller, process cartridge and image forming apparatus |
| US10969709B2 (en) * | 2018-04-20 | 2021-04-06 | Canon Kabushiki Kaisha | Member for electrophotography, process cartridge and electrophotographic apparatus |
| US10539891B1 (en) | 2018-06-28 | 2020-01-21 | Canon Kabushiki Kaisha | Electrophotographic member, process cartridge and electrophotographic image forming apparatus |
| US11169464B2 (en) | 2018-07-30 | 2021-11-09 | Canon Kabushiki Kaisha | Electrophotographic member, process cartridge, and electrophotographic image-forming apparatus |
| JP7277301B2 (en) | 2018-07-31 | 2023-05-18 | キヤノン株式会社 | Electrophotographic member, process cartridge and electrophotographic image forming apparatus |
| JP7158943B2 (en) | 2018-07-31 | 2022-10-24 | キヤノン株式会社 | Electrophotographic member, electrophotographic process cartridge and electrophotographic image forming apparatus |
| JP7199881B2 (en) | 2018-08-31 | 2023-01-06 | キヤノン株式会社 | Development roller, electrophotographic process cartridge and electrophotographic image forming apparatus |
| US10732538B2 (en) | 2018-11-26 | 2020-08-04 | Canon Kabushiki Kaisha | Developing member, process cartridge, and electrophotographic image forming apparatus |
| JP7414469B2 (en) | 2018-11-26 | 2024-01-16 | キヤノン株式会社 | Developing members, process cartridges, and electrophotographic image forming devices |
| US10942471B2 (en) | 2019-03-29 | 2021-03-09 | Canon Kabushiki Kaisha | Electrophotographic member having a surface layer with a cross-linked urethane resin-containing matrix, process cartridge, and apparatus |
| WO2021075441A1 (en) | 2019-10-18 | 2021-04-22 | キヤノン株式会社 | Conductive member, process cartridge, and electrophotographic image forming device |
| WO2021075371A1 (en) | 2019-10-18 | 2021-04-22 | キヤノン株式会社 | Conductive member, manufacturing method thereof, process cartridge, and electrophotographic image forming device |
| EP4050042A4 (en) | 2019-10-23 | 2023-11-15 | Canon Kabushiki Kaisha | Developing apparatus, electrophotography process cartridge, and electrophotographic image forming apparatus |
| JP2021076654A (en) * | 2019-11-06 | 2021-05-20 | 株式会社ブリヂストン | Developing roller |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007133113A (en) * | 2005-11-10 | 2007-05-31 | Canon Inc | Image forming method |
| JP2008164915A (en) * | 2006-12-28 | 2008-07-17 | Canon Inc | Image forming method |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS575047A (en) | 1980-06-13 | 1982-01-11 | Ricoh Co Ltd | Coating method by dipping |
| JP2990005B2 (en) | 1993-12-28 | 1999-12-13 | 株式会社ブリヂストン | Developing roller and developing device |
| JP3422857B2 (en) * | 1994-04-04 | 2003-06-30 | 保土谷化学工業株式会社 | Thermoplastic polyurethane resin having a wide rubber region and method for producing the same |
| EP1134619A3 (en) | 2000-03-16 | 2003-04-02 | Canon Kabushiki Kaisha | Light-receiving member, image-forming apparatus, and image-forming method |
| US6636715B2 (en) | 2000-05-22 | 2003-10-21 | Canon Kabushiki Kaisha | Photosensitive member and image forming apparatus having the same |
| US6600893B2 (en) | 2000-09-19 | 2003-07-29 | Canon Kabushiki Kaisha | Transfer member, process for producing transfer member, and image forming apparatus having transfer member |
| US6737133B2 (en) | 2000-09-19 | 2004-05-18 | Canon Kabushiki Kaisha | Electrophotographic seamless belt, and electrophotographic apparatus having the electrophotographic seamless belt |
| US7208211B2 (en) | 2000-09-19 | 2007-04-24 | Canon Kabushiki Kaisha | Electrophotographic belt member, process for producing electrophotographic belt member, and electrophotographic apparatus |
| US6725002B2 (en) | 2001-08-31 | 2004-04-20 | Canon Kabushiki Kaisha | Process cartridge, electrophotographic apparatus and image forming method |
| JP4217668B2 (en) | 2003-10-15 | 2009-02-04 | キヤノン株式会社 | Developing roller, cartridge, and image forming apparatus |
| US7201967B2 (en) | 2003-11-28 | 2007-04-10 | Canon Kabushiki Kaisha | Electrophotographic endless belt, process for producing electrophotographic endless belt, and electrophotographic apparatus |
| JPWO2006033471A1 (en) | 2004-09-24 | 2008-05-15 | キヤノン株式会社 | Electrophotographic belt, method for producing electrophotographic belt, and electrophotographic apparatus |
| KR20070067151A (en) * | 2004-10-21 | 2007-06-27 | 아사히 가라스 가부시키가이샤 | Polyurethane resin and process for producing polyurethane resin solution |
| JP4612830B2 (en) * | 2004-11-11 | 2011-01-12 | キヤノン株式会社 | Developing roller and developing device for electrophotographic apparatus using the same |
| JP4042755B2 (en) | 2005-03-10 | 2008-02-06 | 東海ゴム工業株式会社 | Developing roll |
| JP4859186B2 (en) * | 2005-11-10 | 2012-01-25 | オリンパスイメージング株式会社 | Zoom lens and image pickup apparatus including the same |
| JP5043395B2 (en) * | 2005-11-10 | 2012-10-10 | キヤノン株式会社 | Developing roller and manufacturing method thereof, developing device and image forming apparatus |
| US7727134B2 (en) * | 2005-11-10 | 2010-06-01 | Canon Kabushiki Tokyo | Developing roller, process for its production, developing assembly and image forming apparatus |
| JP5207682B2 (en) | 2006-09-29 | 2013-06-12 | キヤノン株式会社 | Developing member and electrophotographic image forming apparatus |
| JP4144899B1 (en) | 2007-01-22 | 2008-09-03 | キヤノン株式会社 | Manufacturing method of regenerative elastic roller |
| WO2009099115A1 (en) | 2008-02-07 | 2009-08-13 | Canon Kabushiki Kaisha | Developing member for electrophotography, process for producing the developing member, process cartridge for electrophotography, and image forming apparatus for electrophotography |
| JP4328831B1 (en) * | 2008-02-19 | 2009-09-09 | キヤノン株式会社 | Developing device, electrophotographic image forming apparatus |
| KR101163925B1 (en) * | 2008-05-30 | 2012-07-09 | 캐논 가부시끼가이샤 | Development roller, method for manufacturing thereof, process cartridge, and electrophotographic image forming device |
| JP2011002802A (en) * | 2009-05-18 | 2011-01-06 | Ricoh Co Ltd | Toner, developer, image forming method using the developer and process cartridge |
| WO2012042829A1 (en) | 2010-09-30 | 2012-04-05 | キヤノン株式会社 | Process for manufacture of regenerated elastic roller |
-
2011
- 2011-12-15 JP JP2011274581A patent/JP5079134B2/en active Active
- 2011-12-16 WO PCT/JP2011/007035 patent/WO2012090418A1/en active Application Filing
- 2011-12-16 EP EP11852903.1A patent/EP2660657B1/en active Active
- 2011-12-16 RU RU2013135011/05A patent/RU2540565C1/en not_active IP Right Cessation
- 2011-12-16 BR BR112013014842-0A patent/BR112013014842A2/en not_active Application Discontinuation
- 2011-12-16 CN CN201180063023.1A patent/CN103282838B/en active Active
- 2011-12-16 KR KR1020137019035A patent/KR101471318B1/en active IP Right Grant
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2012
- 2012-04-03 US US13/438,580 patent/US8600273B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007133113A (en) * | 2005-11-10 | 2007-05-31 | Canon Inc | Image forming method |
| JP2008164915A (en) * | 2006-12-28 | 2008-07-17 | Canon Inc | Image forming method |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2660657A1 (en) | 2013-11-06 |
| JP2012150453A (en) | 2012-08-09 |
| WO2012090418A1 (en) | 2012-07-05 |
| KR101471318B1 (en) | 2014-12-09 |
| JP5079134B2 (en) | 2012-11-21 |
| RU2013135011A (en) | 2015-02-10 |
| RU2540565C1 (en) | 2015-02-10 |
| EP2660657B1 (en) | 2017-02-22 |
| CN103282838A (en) | 2013-09-04 |
| BR112013014842A2 (en) | 2020-11-03 |
| US8600273B2 (en) | 2013-12-03 |
| US20120195631A1 (en) | 2012-08-02 |
| KR20130106426A (en) | 2013-09-27 |
| EP2660657A4 (en) | 2016-07-06 |
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